Wanghe Building.

These several high-rise buildings in the city center are the most prosperous area in Ningtai County and also the location of the county's CBD. Various banks have branches here, as well as headquarters of various financial companies, real estate companies, hotel companies, some government departments, and branches of state-owned enterprises, etc.

The high-rise buildings have never been fully rented out, and the rental prices vary greatly. Wanghe Building, which has the worst management, has attracted people who keep cats and dogs, claiming it's for breeding, making the whole floor smell unbearable.

Jiang Yuan had played escape room and archery in Wanghe Building with friends before. Compared to the escape room organized by the county people, it was too rudimentary. Jiang Yuan had to crawl through the wall to get in, and what he saw was a dark and undeveloped area.

Much scarier than the escape room itself.

Several police officers who arrived first had cordoned off the area where the fall occurred. The yellow police tape, the neat square, and the natural high-end stone wall gave it a feeling of a TV show.

Outside the police tape, a group of young people in the county, dressed like white-collar workers, were desperately taking videos and photos with their phones.

Perhaps they wanted to inject some excitement into their barren social media feeds.

The deceased was also a young white-collar worker.

Wearing a white shirt and black trousers, facing away from the ground, his face turned to the right, he had become a mess.

Fortunately, his head didn't come out from inside and shattered on the ground. Otherwise, it would be enough to discourage most young white-collar workers.

"Move the police tape further. Tell those taking photos to leave, and if they don't, confiscate their phones," Huang Qiangming arrived at the scene in his old Pajero and loudly ordered the arriving criminal police officers.

The supported police officers immediately pulled a further police tape, especially evacuating the people who were looking around nearby.

There were still people upstairs stretching their necks and taking photos with their phones until they were pointed at and persuaded to leave.

Jiang Yuan and Wu Jun carefully observed the body.

Wu Jun measured the lines on the ground with a ruler, indicating the position, while Jiang Yuan acted like an assistant, taking photos with a camera.

Wu Jun occasionally reminded, "This side, this side..."

Unlike previous cases, both of them were very focused on taking photos and measuring distances.

This was because both of them knew very well that the first thing to determine in a fall case was whether it was suicide, accident, or homicide. In addition, the possibility of the body being dumped also needed to be considered.

With so many criminal police colleagues coming, they were basically prepared for a homicide.

There was no way around it. If they didn't pre-set their position, like the foreigners who sent two ordinary criminal police officers first to investigate and called for reinforcements after finding suspicious points, it would waste several hours of the golden 72 hours.

Under the pressure of solving the case, the criminal police team couldn't afford to waste those few hours.

At this time, if the forensic expert said it was a voluntary fall, the whole criminal police team could leave work two hours early.

But saying those words was definitely not easy.

Wu Jun and Jiang Yuan were very serious about everything because they understood this.

"The injuries are consistent with the characteristics of a fall," Wu Jun said after finishing taking photos and began to move the body, examining the injuries on the surface.

The characteristics of fall injuries were actually easy to understand, the most important point being that the injuries were usually caused by a one-time violent force.

Of course, if it was like Jackie Chan, falling from a building while stumbling and falling, it definitely wouldn't work and needed to be re-examined.

But for a normal person, falling from a building usually meant hitting the ground at once.

At this time, even if the body had multiple injuries, the direction of force should be consistent.

If it wasn't consistent, then the possibility of injuries before death or the body being dumped needed to be considered. Basically, it meant considering it from the perspective of homicide.

Of course, there were other characteristics of fall injuries, but most of them were observed during the autopsy.

As long as Wu Jun could confirm that it was indeed a fall death, he would be half relieved.

In the city, most fall deaths were suicides.

They couldn't be considered natural deaths, but they weren't homicide cases either.

Jiang Yuan was recording on the side and reminded, "Did the arm have a sideways blocking posture?"

"Yes, it indicates that it wasn't a body dump," Wu Jun agreed.

If there was consciousness during the fall, it naturally couldn't be a body dump.

For certain fall bodies, it wasn't easy to determine on-site whether it was a body dump or not.

And a body dump usually meant it was a homicide.

If it wasn't you who killed them, why would you dump the body? This kind of statement in the context of a body dump generally made sense.

In addition, if there was consciousness during the fall, it indicated that the person wasn't in a state of intoxication or similar. This brought them one step closer to suicide.

As for whether it was an accident or suicide, from the perspective of forensic experts, it wasn't easy to distinguish between the two.

Even saying whether it was a voluntary fall or being pushed down by someone, from the perspective of forensic experts, it wasn't easy to distinguish between the two.

Although it was indeed possible to judge from the distance of the fall and other aspects. But what if the push wasn't far enough, or if the deceased jumped down?

To determine whether it was suicide or not, a more convenient and accurate method should be based on the deceased's state before death and the investigation of the fall scene.

Wu Jun then asked the nearby police officer, "Has the fall scene been determined?"

"Not yet, we are questioning and checking the surveillance footage," the officer's answer was somewhat unexpected.Wu Jun frowned slightly, "Didn't he jump from the rooftop?"

The Wanghe Building was a glass curtain wall office building. Its exterior facade did not have a design similar to residential balconies. Therefore, the most convenient place to jump from would be the rooftop.

Most of its windows were half-open structures, and they were all quite high.

With such a stifling window design, it was unlikely to be chosen by a suicide victim.

A police officer responded with a grunt, "A witness saw him jump from a high floor, but the exact floor is uncertain."

"Alright, let's discuss it when we find out." Wu Jun returned to the body with a furrowed brow.

He was feeling a bit uneasy now. Generally, even if a person committed suicide by jumping out of a window, they would need some time to struggle mentally. Some people would wander around the scene for several hours or even more than ten hours before jumping.

But the fact that the witness couldn't even see which floor he jumped from indicated that he didn't spend much time at the window.

It was rare for someone to rush over, climb up the window without stopping, and jump out, but it did happen.

In other words, it didn't seem like a typical suicide.

Huang Qiangming, who had also received the news, looked grim. He walked over and asked, "Can you tell anything from the body?"

If there were defensive wounds or any obvious injuries, they could directly consider the possibility of murder, which would save everyone from wild guesses.

However, there were none.

Wu Jun squatted down and said, "Let's examine the body first. See if we can find anything."

It was not easy to determine the cause of death from the examination of a body that had fallen from a high place, as there were too many accidental factors. The body might even bounce back after hitting the ground, making it even more complicated.

However, that's what forensics do. In the absence of better methods, they could only resort to the next best thing.

Jiang Yuan, on the other hand, was calm.

He was a single man with no particular obligations at home, so he was fine with working on the case.

This time, Jiang Yuan didn't join Wu Jun in examining the body. Instead, he said, "Master, I want to collect some trace evidence first."

"Alright, you go ahead." Wu Jun agreed without hesitation.

Jiang Yuan then began to carefully collect trace evidence from the deceased's body.

He mainly wanted to collect some micro-evidence.

If the victim had struggled with the murderer before death, there was a high probability that they had exchanged micro-evidence.

Even if the murderer had just pushed the victim, there was a chance to find traces.

Of course, it was difficult.

Jiang Yuan was busy collecting evidence, occasionally tilting his head to look at it in the sunlight. He used a magnifying glass most of the time.

This tool was considered a godsend in criminal science. It was used for fingerprints, crime scene investigation, bloodstains, DNA, and so on.

In general, it was a magnifying glass that was not easily affected by light. But in the field of criminal science in China, for a long time, it was the only tool everyone had.

If the voice of the criminal science community was stronger, this tool could have been elevated to the level of a PA instrument.

It can be hard to make great work when its stolen from bit.ly/3iBfjkV.

"Someone recorded a video." A police officer ran up to Huang Qiangming, his voice quite loud.

Both Jiang Yuan and Wu Jun looked up.

Huang Qiangming simply turned around and watched the video on the phone with several others.

The video on the phone was very short. Basically, the person fell from the window as soon as the phone owner aimed at it.

There didn't seem to be anyone behind the window. In other words, was this an accident?

Jiang Yuan frowned and said, "Keep the phone, don't return it to the owner. I'll enhance it when I get back."

Huang Qiangming immediately agreed and reminded the officers upstairs to protect the scene.

Jiang Yuan added, "As soon as I finish here, I'll go up and collect micro-evidence. The police tape should be as far away as possible."

Huang Qiangming frowned and asked, "Do you think it wasn't a suicide? Was there someone hidden in the video?"

"I don't know, I want to take another look." Jiang Yuan really didn't know, he just felt uneasy.